I want CollectionComposer to expose an accumulated failure sink while I build an Apache Beam pipeline…

I want CollectionComposer to expose an accumulated failure sink while I build an Apache Beam pipeline…: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). When CollectionComposer.of(inputs) is called, the failure side of the composer should start as an empty…